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Coherent satellites in multispectral regenerative frequency microcombs
Communications Physics ( IF 5.4 ) Pub Date : 2020-01-28 , DOI: 10.1038/s42005-019-0274-x
Jinghui Yang , Shu-Wei Huang , Zhenda Xie , Mingbin Yu , Dim-Lee Kwong , Chee Wei Wong

Multispectral frequency combs provide new architectures for laser spectroscopy, clockwork, and high-capacity communications. Frequency microcombs have demonstrated remarkable impact in frequency metrology and synthesis, albeit with spectral bandwidth bounded by intrinsic second-order dispersion and consequently low-intensities at the spectral edges. Here we report coherent satellite clusters in multispectral regenerative frequency microcombs with enhanced intensities at the octave points and engineered frequency span. Beyond the conventional bandwidth of parametric oscillation, the regenerative satellites are facilitated by higher-order dispersion control, allowing for multiphase-matched parametric processes. The satellite span is deterministically controlled from 34 to 72 THz by pumped at C/L-bands, with coherence preserved with the central comb through the nonlinear parametric process. We further show the mirrored appearance of the satellite transition dynamics simultaneously with the central comb at each comb state. These multispectral satellites extend the scope of parametric-based frequency combs and provide a unique platform for clockwork, spectroscopy and communications.



中文翻译:

多光谱再生频率微梳中的相干卫星

多光谱频率梳为激光光谱,发条和高容量通信提供了新的架构。尽管频谱带宽受到固有的二阶色散限制,因而频谱边缘处的强度较低,但频率微梳在频率计量和合成方面已显示出显着影响。在这里,我们报告了多光谱再生频率微梳中的相干卫星簇,其在八度音阶和工程频率跨度处具有增强的强度。除了常规的参数振荡带宽之外,再生卫星还可以通过更高阶的色散控制来实现,从而可以进行多相匹配的参数处理。通过在C / L频段泵浦,可以确定地将卫星跨度控制在34 THz至72 THz,通过非线性参数过程保持与中心梳的相干性。我们进一步展示了卫星过渡动力学的镜像外观,以及每个梳状状态下的中心梳。这些多光谱卫星扩展了基于参数的频率梳的范围,并为发条,光谱和通信提供了独特的平台。

更新日期:2020-01-28
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